Exercise not only burns calories, it also increases your metabolism. (Think Stock photo) Five daily servings of fruits and vegetables: check. Drinking lots of water: check. Sleeping at least seven hours a night: check. You may even be forking out top dollar for dietary supplements, so you can feel your best every day. But do you make time for fitness and regular exercise? "Physical inactivity or 'sedentarism' is the fourth leading killer in the world, ranking above obesity. So in a way, it is better to be fat and active, than to be thin and inactive. We all need to be physically active," says Dr Ben Tan , chairman of the Exercise is Medicine , Singapore Task Force. Here is a reminder of the major benefits you could reap from regular exercise. Lose weight For short-term weight loss, dieting is actually more effective than exercise. But combined, they are the most potent way...